It's easy to read things into this type of event, as when Ratzinger announced his resignation, etc. I mean, there is a lightning rod up there to prevent the building from burning down.
While nothing is entirely "accidental" where it comes to God, I would imagine that this statue would naturally tend to be struck given its altitude and prominence.
If this is some kind of divine message, it doesn't seem like a good one. It seems to make Our Lord appear wrathful and ready to strike.